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libopenshot/include/Player.h

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2.4 KiB
C++

/**
* @file
* @brief Header file for Player class
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @section LICENSE
*
* Copyright (c) 2008-2013 OpenShot Studios, LLC
* (http://www.openshotstudios.com). This file is part of
* OpenShot Library (http://www.openshot.org), an open-source project
* dedicated to delivering high quality video editing and animation solutions
* to the world.
*
* OpenShot Library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenShot Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSHOT_PLAYER_H
#define OPENSHOT_PLAYER_H
#include <iostream>
#include <vector>
#include "../include/ReaderBase.h"
#define _SDL_main_h // This prevents SDL_main from replacing our main() function.
#include <SDL.h>
#include <SDL_thread.h>
using namespace std;
namespace openshot
{
/// This type is a pointer to a method, used to render the current frame of video on a player.
typedef void (*CallbackPtr)(int, int, int, const Magick::PixelPacket *Pixels, void *);
/**
* @brief This class is used to playback a video from a reader.
*
* This player does not actually show the video, but rather it invokes a method each time
* a frame should be displayed. This allows the calling application to display the image using
* any toolkit it wishes.
*/
class Player
{
private:
ReaderBase *reader;
CallbackPtr callback;
void *pythonmethod;
// draw pixels for SDL
void putpixel(SDL_Surface *surface, SDL_Overlay *bmp, int x, int y, Uint32 pixel, int pixel_index);
public:
/// Default constructor
Player();
/// Set the current reader, such as a FFmpegReader
void SetReader(ReaderBase *p_reader);
/// Set a callback function which will be invoked each time a frame is ready to be displayed
void SetFrameCallback(CallbackPtr p_callback, void *p_pythonmethod);
/// Manually invoke function (if any)
void Push();
/// Play the video
void Play();
};
}
#endif